Window-sash-locking device



C. M. JACOBS. WINDOW SASH LOCKING DEVICE. APPLICATION FILED NOV. 4, 1919.

Patented June 22, 1920.

lNl ENToR, 6201a: Mr/acaa, By #aA/u M A TTORNE sash.

UNITED'STATES PA ENT OFFICE,

CHARLES M. JACOBS, OF LONGMEAIDOW,. MASSACHUSETTS.

WINDOW-SASH-LOCKING DEVICE;

an attachment for window sashes, the obj ect of which is to provide device for securely locking the upper and lower sashes together so that either one or both may be moved from the closed position, that is to say, the upper one may be moved downward, or the lower one moved upward, or the two may be moved together. In order to prevent the window from being opened and at the same time provide proper ventilation, the device herein shown is applicable. It comprises a member, preferably Ushaped, adapted to be secured to the upper sash and a second member adapted to be secured to the upper or mid-rail of the lower sash and so attached that it may be swung or rotated into engagement with the U-shaped member of the upper sash. Means is also provided for drawing the two sashes toward each other when in looking engagement.

Referring to the drawings:

, Figure 1 is a perspective view showing the two sashes in closed position, the looking or rotating part of the device being turned inparallel relation to the mid-rail.

Fig. 2 shows the device when in use and with the locking or rotat'ive par-t turned toward the upper sash and into locking en gagement with theU-shaped member.

Fig. 3 is a perspective view of the U- shaped member which is attached to the upper sash showing the ears and the cut-out part for receiving the tongue portion of the rotatable part.

Fig. i is a detail view of the latch part.

Referring to the drawings in detail: 1 designates the upper sash and 2 the lower side portions 3 of the sash 1 is a U-shaped member 4: having upper and lower parallel plates 5 and 6 that are connected together other devices for attaching the same to thepart 3 at any suitable distance from the 1 Sn ecificationof Letters Patent. Application med November 4, 1919;" Serial no. 335,728;

Secured to one of the uprights or mid-rail. The lower plate 6 is formed with an opening or cutaway portion 11 8' and PatentedJune 22,1920.

9 designate ears that are located in a vertical position above andrbelow the plates 5 and (Sand having openings. 10 for the at tachmg. screws. These ears arefused it the thlckness of the sash is not sufiicient to receive the ears 8 and 9. e The screws are then passed through the openings 10.

Referring to the latching device which is shown in detail in Fig. 4;, this device comprisesa barrel portion 12 having the wings 13 and 1 1 and an opening 15 therethrough for pivotally attaching the same to the upper surface of the mid-rail 16 as shown in Figs. land 2. 17 designates an integral arm having a projection or enlargement 18 which is formed with a shoulder 19. This arm 17 swings into the space between the plates 5 and 6, shown in' Fig. 2, when in looking use andthe enlarged portion 18 then drops into the cut-out part 11 of the lower plate 6 and the shoulder portion 19' engages the inner edge 20, it being understood that the rigid arm 17 slightly bends the flexible plate 6 downward in order to lock the two sashes together and to prevent their being shaken apart by an intruder.

shaped and havingv plates spaced from each other and designed for attachment to one of the upright side rails of the upper sash of a window and the open or entrance end of the spaced plates of the member extending in a direction toward the opposite upright side rail, a second member adapted to be plvotally attached to the mid-rail of the lower sash and having an extension for entering the open end of said member,

which is secured to the upper sash, and

interlocking snap devices between the plates and the second member.

2. A (lBVlCG for the purpose described, comprislng two members,one being integral and permanently secured to the upper sash and having a slightly flexible portion, the other member being movably secured to-the lower sash and having a rigid L-shaped arm formed with a projection or boss to en gage a recess in the flexible portion of the that are connected to the base portion, one of the plates belng flexible and having a cut-out part, a rigid member havlng a locklng fiat blade mounted on the lower sash and formed With an enlarged portion for snapping into and engaging the cut-out portion of the integral flexible plate; whereby the two sashes may be locked together, as described.

CHARLES M. JACOBS. 

